. >> representative peter king from long island says it has the hallmarks of an al qaeda attack. >> i think when you look at that you have to go to your inspire magazine al qaeda's online publication where they have instructions for these bombs. you see these simple bombs. it certainly does that. to be on balance, you also will see that these are not sophisticated devices. we've seen the same kind of devices in domestic terror. >> no clear evidence that anyone subjected this was going to happen and secondly no one has taken credit for it at this time. norah? >> that's right, john miller. thank you. and charlie. as you heard, eyewitnesses say it was a horrific scene at the marathon finish line. medical tents set up at the end of the race were turned into emergency rooms. don, good morning. >> reporter: good morning. victims were brought to seven boston area hospitals including mass general that took in 29 of them, eight of whom here are listed in critical condition for a total of 17 around the area. as word of the bombings came out, the hospitals quickly sprang into action. they evacua